摘要美国2010年发布的数学共同核心课程标准(Common Core State Standards for Mathematics,简称CCSSM)旨在改变教学实践,提供高质量的数学教育(National Governors Association Center for Best Practices&Council of Chief State School Officers,2010).然而,如何更好地帮助任课教师在教学中有效地应用数学共同核心课程标准是一项艰巨的任务.
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